Spot Light Shadow
Video Lecture
Description
The Spot Light Shadow uses a PerspectiveCamera frustum to calculate the shadows.
The PerspectiveCamera defaults are
Direction | Value |
---|---|
near | 0.5 |
far | If the owning spotlight distance is set higher than 0, it will use that, otherwise it uses the default 500 |
fov | the angle property of the owning spotlight via the update method |
aspect | aspect of the mapSize, default 512/512 = 1 |
Possible renderer.shadowMap.type values
Type | Value |
---|---|
BasicShadowMap | gives unfiltered shadow maps - fastest, but lowest quality. |
PCFShadowMap | filters shadow maps using the Percentage-Closer Filtering (PCF) algorithm (default). |
PCFSoftShadowMap | (Default) filters shadow maps using the Percentage-Closer Soft Shadows (PCSS) algorithm. |
VSMShadowMap | filters shadow maps using the Variance Shadow Map (VSM) algorithm. When using VSMShadowMap all shadow receivers will also cast shadows. |
Start Code
./src/client/client.ts
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | // If using Relative Import References import * as THREE from '/build/three.module.js' import { OrbitControls } from '/jsm/controls/OrbitControls' import Stats from '/jsm/libs/stats.module' import { GUI } from '/jsm/libs/dat.gui.module' // If using Module Specifiers //import * as THREE from 'three' //import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls' //import Stats from 'three/examples/jsm/libs/stats.module' //import { GUI } from 'three/examples/jsm/libs/dat.gui.module' const scene: THREE.Scene = new THREE.Scene() const axesHelper = new THREE.AxesHelper(5) scene.add(axesHelper) const light = new THREE.SpotLight(); // light.castShadow = true; // light.shadow.mapSize.width = 512; // light.shadow.mapSize.height = 512; // light.shadow.camera.near = 0.5; // light.shadow.camera.far = 100 scene.add(light); const helper = new THREE.SpotLightHelper(light); //const helper = new THREE.CameraHelper(light.shadow.camera); scene.add(helper); const camera: THREE.PerspectiveCamera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000) const renderer: THREE.WebGLRenderer = new THREE.WebGLRenderer() renderer.setSize(window.innerWidth, window.innerHeight) //renderer.shadowMap.enabled = true //renderer.shadowMap.type = THREE.PCFSoftShadowMap //renderer.shadowMap.type = THREE.BasicShadowMap //renderer.shadowMap.type = THREE.PCFShadowMap //renderer.shadowMap.type = THREE.VSMShadowMap document.body.appendChild(renderer.domElement) const controls = new OrbitControls(camera, renderer.domElement) const planeGeometry: THREE.PlaneGeometry = new THREE.PlaneGeometry(100, 20) const plane: THREE.Mesh = new THREE.Mesh(planeGeometry, new THREE.MeshPhongMaterial()) plane.rotateX(-Math.PI / 2) plane.position.y = -1.75 //plane.receiveShadow = true; scene.add(plane) const torusGeometry: THREE.TorusGeometry[] = [ new THREE.TorusGeometry(), new THREE.TorusGeometry(), new THREE.TorusGeometry(), new THREE.TorusGeometry(), new THREE.TorusGeometry() ] const material: (THREE.MeshBasicMaterial | THREE.MeshLambertMaterial | THREE.MeshPhongMaterial | THREE.MeshPhysicalMaterial | THREE.MeshToonMaterial)[] = [ new THREE.MeshBasicMaterial(), new THREE.MeshLambertMaterial(), new THREE.MeshPhongMaterial(), new THREE.MeshPhysicalMaterial({}), new THREE.MeshToonMaterial(), ] const torus: THREE.Mesh[] = [ new THREE.Mesh(torusGeometry[0], material[0]), new THREE.Mesh(torusGeometry[1], material[1]), new THREE.Mesh(torusGeometry[2], material[2]), new THREE.Mesh(torusGeometry[3], material[3]), new THREE.Mesh(torusGeometry[4], material[4]) ] const texture = new THREE.TextureLoader().load("img/grid.png") material[0].map = texture material[1].map = texture material[2].map = texture material[3].map = texture material[4].map = texture torus[0].position.x = -8 torus[1].position.x = -4 torus[2].position.x = 0 torus[3].position.x = 4 torus[4].position.x = 8 // torus[0].castShadow = true; // torus[1].castShadow = true; // torus[2].castShadow = true; // torus[3].castShadow = true; // torus[4].castShadow = true; // torus[0].receiveShadow = true; // torus[1].receiveShadow = true; // torus[2].receiveShadow = true; // torus[3].receiveShadow = true; // torus[4].receiveShadow = true; scene.add(torus[0]) scene.add(torus[1]) scene.add(torus[2]) scene.add(torus[3]) scene.add(torus[4]) camera.position.z = 7 window.addEventListener('resize', onWindowResize, false) function onWindowResize() { camera.aspect = window.innerWidth / window.innerHeight camera.updateProjectionMatrix() renderer.setSize(window.innerWidth, window.innerHeight) render() } const stats = Stats() document.body.appendChild(stats.dom) var data = { color: light.color.getHex(), mapsEnabled: true, //shadowMapSizeWidth: 512, //shadowMapSizeHeight: 512, }; const gui = new GUI() const lightFolder = gui.addFolder('THREE.Light') lightFolder.addColor(data, 'color').onChange(() => { light.color.setHex(Number(data.color.toString().replace('#', '0x'))) }); lightFolder.add(light, 'intensity', 0, 1, 0.01); lightFolder.open() const spotLightFolder = gui.addFolder('THREE.SpotLight') spotLightFolder.add(light, "distance", 0, 100, 0.01) spotLightFolder.add(light, "decay", 0, 4, 0.1) spotLightFolder.add(light, "angle", 0, 1, 0.1) spotLightFolder.add(light, "penumbra", 0, 1, 0.1) //spotLightFolder.add(light.shadow.camera, "near", 0.1, 100).onChange(() => light.shadow.camera.updateProjectionMatrix()) //spotLightFolder.add(light.shadow.camera, "far", 0.1, 100).onChange(() => light.shadow.camera.updateProjectionMatrix()) //spotLightFolder.add(data, "shadowMapSizeWidth", [256, 512, 1024, 2048, 4096]).onChange(() => updateShadowMapSize()) //spotLightFolder.add(data, "shadowMapSizeHeight", [256, 512, 1024, 2048, 4096]).onChange(() => updateShadowMapSize()) spotLightFolder.add(light.position, "x", -50, 50, 0.01) spotLightFolder.add(light.position, "y", -50, 50, 0.01) spotLightFolder.add(light.position, "z", -50, 50, 0.01) spotLightFolder.open() // function updateShadowMapSize() { // light.shadow.mapSize.width = data.shadowMapSizeWidth // light.shadow.mapSize.height = data.shadowMapSizeHeight; // (light.shadow.map as any)= null // } const meshesFolder = gui.addFolder('Meshes') meshesFolder.add(data, 'mapsEnabled').onChange(() => { material.forEach(m => { if (data.mapsEnabled) { m.map = texture } else { m.map = null; } m.needsUpdate = true; }) }); var animate = function () { requestAnimationFrame(animate) helper.update() torus.forEach(t => { t.rotation.y += .01 }) render() stats.update() }; function render() { renderer.render(scene, camera) } animate(); |
Final Code
./src/client/client.ts
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | // If using Relative Import References import * as THREE from '/build/three.module.js' import { OrbitControls } from '/jsm/controls/OrbitControls' import Stats from '/jsm/libs/stats.module' import { GUI } from '/jsm/libs/dat.gui.module' // If using Module Specifiers //import * as THREE from 'three' //import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls' //import Stats from 'three/examples/jsm/libs/stats.module' //import { GUI } from 'three/examples/jsm/libs/dat.gui.module' const scene: THREE.Scene = new THREE.Scene() const axesHelper = new THREE.AxesHelper(5) scene.add(axesHelper) const light = new THREE.SpotLight(); light.castShadow = true; light.shadow.mapSize.width = 512; light.shadow.mapSize.height = 512; light.shadow.camera.near = 0.5; light.shadow.camera.far = 100 scene.add(light); //const helper = new THREE.SpotLightHelper(light); const helper = new THREE.CameraHelper(light.shadow.camera); scene.add(helper); const camera: THREE.PerspectiveCamera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000) const renderer: THREE.WebGLRenderer = new THREE.WebGLRenderer() renderer.setSize(window.innerWidth, window.innerHeight) renderer.shadowMap.enabled = true renderer.shadowMap.type = THREE.PCFSoftShadowMap //renderer.shadowMap.type = THREE.BasicShadowMap //renderer.shadowMap.type = THREE.PCFShadowMap //renderer.shadowMap.type = THREE.VSMShadowMap document.body.appendChild(renderer.domElement) const controls = new OrbitControls(camera, renderer.domElement) const planeGeometry: THREE.PlaneGeometry = new THREE.PlaneGeometry(100, 20) const plane: THREE.Mesh = new THREE.Mesh(planeGeometry, new THREE.MeshPhongMaterial()) plane.rotateX(-Math.PI / 2) plane.position.y = -1.75 plane.receiveShadow = true; scene.add(plane) const torusGeometry: THREE.TorusGeometry[] = [ new THREE.TorusGeometry(), new THREE.TorusGeometry(), new THREE.TorusGeometry(), new THREE.TorusGeometry(), new THREE.TorusGeometry() ] const material: (THREE.MeshBasicMaterial | THREE.MeshLambertMaterial | THREE.MeshPhongMaterial | THREE.MeshPhysicalMaterial | THREE.MeshToonMaterial)[] = [ new THREE.MeshBasicMaterial(), new THREE.MeshLambertMaterial(), new THREE.MeshPhongMaterial(), new THREE.MeshPhysicalMaterial({}), new THREE.MeshToonMaterial(), ] const torus: THREE.Mesh[] = [ new THREE.Mesh(torusGeometry[0], material[0]), new THREE.Mesh(torusGeometry[1], material[1]), new THREE.Mesh(torusGeometry[2], material[2]), new THREE.Mesh(torusGeometry[3], material[3]), new THREE.Mesh(torusGeometry[4], material[4]) ] const texture = new THREE.TextureLoader().load("img/grid.png") material[0].map = texture material[1].map = texture material[2].map = texture material[3].map = texture material[4].map = texture torus[0].position.x = -8 torus[1].position.x = -4 torus[2].position.x = 0 torus[3].position.x = 4 torus[4].position.x = 8 torus[0].castShadow = true; torus[1].castShadow = true; torus[2].castShadow = true; torus[3].castShadow = true; torus[4].castShadow = true; torus[0].receiveShadow = true; torus[1].receiveShadow = true; torus[2].receiveShadow = true; torus[3].receiveShadow = true; torus[4].receiveShadow = true; scene.add(torus[0]) scene.add(torus[1]) scene.add(torus[2]) scene.add(torus[3]) scene.add(torus[4]) camera.position.z = 7 window.addEventListener('resize', onWindowResize, false) function onWindowResize() { camera.aspect = window.innerWidth / window.innerHeight camera.updateProjectionMatrix() renderer.setSize(window.innerWidth, window.innerHeight) render() } const stats = Stats() document.body.appendChild(stats.dom) var data = { color: light.color.getHex(), mapsEnabled: true, shadowMapSizeWidth: 512, shadowMapSizeHeight: 512, }; const gui = new GUI() const lightFolder = gui.addFolder('THREE.Light') lightFolder.addColor(data, 'color').onChange(() => { light.color.setHex(Number(data.color.toString().replace('#', '0x'))) }); lightFolder.add(light, 'intensity', 0, 1, 0.01); lightFolder.open() const spotLightFolder = gui.addFolder('THREE.SpotLight') spotLightFolder.add(light, "distance", 0, 100, 0.01) spotLightFolder.add(light, "decay", 0, 4, 0.1) spotLightFolder.add(light, "angle", 0, 1, 0.1) spotLightFolder.add(light, "penumbra", 0, 1, 0.1) spotLightFolder.add(light.shadow.camera, "near", 0.1, 100).onChange(() => light.shadow.camera.updateProjectionMatrix()) spotLightFolder.add(light.shadow.camera, "far", 0.1, 100).onChange(() => light.shadow.camera.updateProjectionMatrix()) spotLightFolder.add(data, "shadowMapSizeWidth", [256, 512, 1024, 2048, 4096]).onChange(() => updateShadowMapSize()) spotLightFolder.add(data, "shadowMapSizeHeight", [256, 512, 1024, 2048, 4096]).onChange(() => updateShadowMapSize()) spotLightFolder.add(light.position, "x", -50, 50, 0.01) spotLightFolder.add(light.position, "y", -50, 50, 0.01) spotLightFolder.add(light.position, "z", -50, 50, 0.01) spotLightFolder.open() function updateShadowMapSize() { light.shadow.mapSize.width = data.shadowMapSizeWidth light.shadow.mapSize.height = data.shadowMapSizeHeight; (light.shadow.map as any)= null } const meshesFolder = gui.addFolder('Meshes') meshesFolder.add(data, 'mapsEnabled').onChange(() => { material.forEach(m => { if (data.mapsEnabled) { m.map = texture } else { m.map = null; } m.needsUpdate = true; }) }); var animate = function () { requestAnimationFrame(animate) helper.update() torus.forEach(t => { t.rotation.y += .01 }) render() stats.update() }; function render() { renderer.render(scene, camera) } animate(); |